Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

For More Weather Information:

Key West, FL Local Forecast Office

3NM SSW Alligator Reef Light FL

Marine Point Forecast

[NOTICE]

Thursday
High: 74 °F
N 15kt
1-2ft
Thursday Night
Low: 69 °F
NE 10kt
1ft
Friday
High: 77 °F
E 10kt
1ft
Friday Night
Low: 72 °F
E 10kt
1ft
Saturday
High: 78 °F
E 15kt
1ft
Saturday Night
Low: 72 °F
E 15kt
1-2ft
Sunday
High: 78 °F
⇑N 10kt
1ft
Sunday Night
Low: 69 °F
NNE 20kt
1-2ft
Monday
High: 75 °F
NE 20kt
3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:15 am CST Dec 11, 2025
Forecast Valid: 1am CST Dec 11, 2025-6pm CST Dec 17, 2025

View Nearby Observations

Detailed Forecast

Thursday

N wind 10 to 15 kt. Mostly sunny. Seas 1 to 2 ft.

Thursday Night

N wind 5 to 10 kt becoming NE after midnight. Partly cloudy. Seas around 1 ft.

Friday

E wind around 10 kt. Mostly sunny. Seas around 1 ft.

Friday Night

E wind around 10 kt. Partly cloudy. Seas around 1 ft.

Saturday

E wind 10 to 15 kt. Isolated showers. Seas around 1 ft.

Saturday Night

E wind 5 to 15 kt becoming NNE after midnight. Scattered showers. Seas 1 to 2 ft.

Sunday

Variable winds less than 5 kt becoming N 5 to 10 kt in the morning. Scattered showers. Seas around 1 ft.

Sunday Night

NNE wind 10 to 20 kt. Isolated showers. Seas 1 to 2 ft.

Monday

NE wind around 20 kt. Isolated showers. Seas around 3 ft.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.